Write an equation for the value of y in terms of x. Then solve the equation for x.
1 answer:
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Answer:
a = - , b = -
Step-by-step explanation:
To obtain the required form use the method of completing the square
add/ subtract ( half the coefficient of the x- term)² to x² - 9x
y = x² + 2(- )x +
-
+ 14
= (x - )² -
+
= (x - )²-
← in the form (x + a)² + b
with a = - and b = -
Answer:
Step-by-step explanation:
There are 30 students in a math class.
Only 8 students submitted their homework.
So those did not submit the homework were 30 - 8 = 22
The fraction of the students who did not submit the homework were =
Check the picture below.
let's notice that the red triangle is a 30-60-90 triangle, and the green one is a 45-45-90 triangle.
